Conditional quantum evolution induced by continuous measurement for a mesoscopic qubit

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dc.creatorGoan, Hsi-Sheng
dc.creatorMilburn, Gerard J.
dc.date2001-02-04
dc.date.accessioned2026-07-07T02:40:17Z
dc.date.available2026-07-07T02:40:17Z
dc.descriptionWe consider the problem of an electron tunneling between two coupled quantum dots, a two-state quantum system (qubit), using a low-transparency point contact (PC) or tunnel junction as a detector continually measuring the position of the electron. We focus on the qubit dynamics conditioned on a particular realization of the actual measured current through the PC device. We illustrate the conditional evolutions by numerical simulations. The different behaviors between unconditional and conditional evolutions are demonstrated. The conditional qubit dynamics evolving from quantum jumps to quantum diffusion is presented.
dc.description4 pages. Submitted to the IQC01 conference proceedings
dc.identifierhttps://arxiv.org/abs/cond-mat/0102058
dc.identifierhttp://arxiv.org/abs/cond-mat/0102058
dc.identifierProceedings of the 1st International Conference on Experimental Implementations of Quantum Computing (Rinton Press, New Jersey, 2001) pp. 306
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/17326
dc.subjectMesoscale and Nanoscale Physics
dc.titleConditional quantum evolution induced by continuous measurement for a mesoscopic qubit
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